Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2

P. Baeza, R. Bassi, M. Villarroel, J. Ojeda, P. Araya, G. Aguila

Resultado de la investigación: Article

5 Citas (Scopus)

Resumen

The adsorption of refractory sulfur molecule 4,6-Dimethyldibenzothiophene (4,6-DMDBT) over copper supported on zirconia, using different copper loadings (2-10% w/w) and a zirconia support with a high specific surface area, was studied. The results showed that the adsorption capacity of 4,6-DMDBT over Cu/ZrO2increased with copper content, reaching a maximum at around 8% Cu (0.58 mmol 4,6-DMDBT per gram of adsorbent). The results of characterizations with H2- TPR, Electrophoretic Migration, and XRD demonstrated that this Cu loading (8%) also corresponds to a maximum copper dispersion capacity for ZrO2support. Also, these absorbents showed considerable selectivity toward the adsorption of 4,6-DMDBT in a feed stream also containing Quinoline, decreasing adsorption capacity of 4,6-DMDBT by only 35%, despite both molecules being present in the same concentrations. The results of this work showed that desulfurization adsorption using Cu/ZrO2 adsorbents can be an effective method to remove this type of refractory sulfur molecules, and an excellent alternative as a complementary process for deep desulfurization in the fuel industry.

Idioma originalEnglish
Páginas (desde-hasta)2817-2821
Número de páginas5
PublicaciónJournal of the Chilean Chemical Society
Volumen60
N.º1
DOI
EstadoPublished - 1 mar 2015

Huella dactilar

Copper
Adsorption
Desulfurization
Sulfur
Refractory materials
Adsorbents
Molecules
Specific surface area
4,6-dimethyldibenzothiophene
Industry
zirconium oxide

ASJC Scopus subject areas

  • Chemistry(all)

Citar esto

Baeza, P. ; Bassi, R. ; Villarroel, M. ; Ojeda, J. ; Araya, P. ; Aguila, G. / Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2 En: Journal of the Chilean Chemical Society. 2015 ; Vol. 60, N.º 1. pp. 2817-2821.
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abstract = "The adsorption of refractory sulfur molecule 4,6-Dimethyldibenzothiophene (4,6-DMDBT) over copper supported on zirconia, using different copper loadings (2-10{\%} w/w) and a zirconia support with a high specific surface area, was studied. The results showed that the adsorption capacity of 4,6-DMDBT over Cu/ZrO2increased with copper content, reaching a maximum at around 8{\%} Cu (0.58 mmol 4,6-DMDBT per gram of adsorbent). The results of characterizations with H2- TPR, Electrophoretic Migration, and XRD demonstrated that this Cu loading (8{\%}) also corresponds to a maximum copper dispersion capacity for ZrO2support. Also, these absorbents showed considerable selectivity toward the adsorption of 4,6-DMDBT in a feed stream also containing Quinoline, decreasing adsorption capacity of 4,6-DMDBT by only 35{\%}, despite both molecules being present in the same concentrations. The results of this work showed that desulfurization adsorption using Cu/ZrO2 adsorbents can be an effective method to remove this type of refractory sulfur molecules, and an excellent alternative as a complementary process for deep desulfurization in the fuel industry.",
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Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2 . / Baeza, P.; Bassi, R.; Villarroel, M.; Ojeda, J.; Araya, P.; Aguila, G.

En: Journal of the Chilean Chemical Society, Vol. 60, N.º 1, 01.03.2015, p. 2817-2821.

Resultado de la investigación: Article

TY - JOUR

T1 - Adsorption of 4,6-Dimethyldibenzothiophene over Cu/ZrO2

AU - Baeza, P.

AU - Bassi, R.

AU - Villarroel, M.

AU - Ojeda, J.

AU - Araya, P.

AU - Aguila, G.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - The adsorption of refractory sulfur molecule 4,6-Dimethyldibenzothiophene (4,6-DMDBT) over copper supported on zirconia, using different copper loadings (2-10% w/w) and a zirconia support with a high specific surface area, was studied. The results showed that the adsorption capacity of 4,6-DMDBT over Cu/ZrO2increased with copper content, reaching a maximum at around 8% Cu (0.58 mmol 4,6-DMDBT per gram of adsorbent). The results of characterizations with H2- TPR, Electrophoretic Migration, and XRD demonstrated that this Cu loading (8%) also corresponds to a maximum copper dispersion capacity for ZrO2support. Also, these absorbents showed considerable selectivity toward the adsorption of 4,6-DMDBT in a feed stream also containing Quinoline, decreasing adsorption capacity of 4,6-DMDBT by only 35%, despite both molecules being present in the same concentrations. The results of this work showed that desulfurization adsorption using Cu/ZrO2 adsorbents can be an effective method to remove this type of refractory sulfur molecules, and an excellent alternative as a complementary process for deep desulfurization in the fuel industry.

AB - The adsorption of refractory sulfur molecule 4,6-Dimethyldibenzothiophene (4,6-DMDBT) over copper supported on zirconia, using different copper loadings (2-10% w/w) and a zirconia support with a high specific surface area, was studied. The results showed that the adsorption capacity of 4,6-DMDBT over Cu/ZrO2increased with copper content, reaching a maximum at around 8% Cu (0.58 mmol 4,6-DMDBT per gram of adsorbent). The results of characterizations with H2- TPR, Electrophoretic Migration, and XRD demonstrated that this Cu loading (8%) also corresponds to a maximum copper dispersion capacity for ZrO2support. Also, these absorbents showed considerable selectivity toward the adsorption of 4,6-DMDBT in a feed stream also containing Quinoline, decreasing adsorption capacity of 4,6-DMDBT by only 35%, despite both molecules being present in the same concentrations. The results of this work showed that desulfurization adsorption using Cu/ZrO2 adsorbents can be an effective method to remove this type of refractory sulfur molecules, and an excellent alternative as a complementary process for deep desulfurization in the fuel industry.

KW - 4, 6-dimethyldibenzothiophene

KW - Adsorption

KW - Copper

KW - Desulfurization

KW - Zirconia

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